RIOPA.jl

Reproducible Input Ouput (I/O) Pattern Application (RIOPA). Proxy app for I/O generation using Julia funded by the U.S. Department of Energy Exascale Computing Project.

Requires:

• Julia v1.6 or later

Getting started

It's helpful to set the following environment variables:

• JULIA_MPI_PATH=<MPI-installation-prefix>
• JULIA_MPI_BINARY=system
• JULIA_HDF5_PATH=<path-to-HDF5-binaries> (may be necessary in order to use HDF5 in parallel see HDF5.jl docs)

In addition, if mpiexec is not the proper run command for your system, set the environment variable JULIA_MPI_EXEC to the desired run command (such as srun or jsrun). See the MPI package configuration page for more options if necessary.

From top-level RIOPA directory run

julia --project[=.]

julia> ]
(RIOPA) pkg> instantiate
(RIOPA) pkg> build
(RIOPA) pkg> <Ctrl-D>

Test Suite

julia --project ./test/runtests.jl

Minimal Functionality ("hello") Mode

julia --project riopa.jl [(-c | --config) <config-file>] hello

Using the default configuration:

julia --project riopa.jl hello

or in parallel:

mpirun -n 4 julia --project riopa.jl hello

Generate a Configuration File

julia --project riopa.jl [(-c | --config) <config-filename>] generate-config

If no filename is given, the generated file will be given a generic name.